EXPECTED BEHAVIOR:
Testing: keyTimes, autoReverse.
At 0 seconds, the smile should be 50px wide.
At 2 seconds, the smile will immediately increase its width to 150px.
At 2-11 seconds, the smile will shrink back to its original width of 50px.
At 11-12 seconds, the smile will increase its width to 250px.
At 12-13 seconds, the smile will decrease its width to 50px.
At 13-22 seconds, the smile will increase its width to 150px and freeze.